20211121102 has 8 divisors (see below), whose sum is σ = 30337156512. Its totient is φ = 10098735600.

The previous prime is 20211121069. The next prime is 20211121103. The reversal of 20211121102 is 20112111202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211121103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3408774 + ... + 3414697.

It is an arithmetic number, because the mean of its divisors is an integer number (3792144564).

Almost surely, 2^20211121102 is an apocalyptic number.

20211121102 is a deficient number, since it is larger than the sum of its proper divisors (10126035410).

20211121102 is a wasteful number, since it uses less digits than its factorization.

20211121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6824954.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20211121102 its reverse (20112111202), we get a palindrome (40323232304).

The spelling of 20211121102 in words is "twenty billion, two hundred eleven million, one hundred twenty-one thousand, one hundred two".